Release reset structure for flow guide cylinder of single crystal furnace

Abstract

The utility model provides an unhooking reset structure for a flow guide cylinder of a single crystal furnace, which relates to the technical field of flow guide cylinders for single crystal furnaces and comprises a water cooling screen connected with a water inlet pipe and a water outlet pipe respectively, the guide cylinder body sleeves the outer side of the water cooling screen, the top of the guide cylinder body is provided with a screw hole and is in threaded connection with a mounting bolt through the screw hole, and one end of the mounting bolt extends to the top of the guide cylinder body; the hanging plates are arranged on the water inlet pipe and the water outlet pipe respectively, and a clamping groove is formed in each hanging plate; one end of the hanging rod is provided with a threaded groove matched with the mounting bolt, and the other end of the hanging rod is in threaded connection with a nut; wherein the end, provided with the nut, of the hanging rod penetrates through the clamping groove of the hanging plate, and the nut is used for hanging the hanging rod on the top of the hanging plate. According to the reset structure, after the guide cylinder descends along with the water-cooling screen, the problem that the guide cylinder is inclined due to the fact that a hinge is prone to shaking is solved, and the problem that the guide cylinder and the water-cooling screen are difficult to keep coaxial when the guide cylinder is reset after multiple times of unhooking is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of guide tubes for single crystal furnaces, in particular to a detachable and resetting structure for guide tubes for single crystal furnaces. Background Art

[0002] Currently, in the single crystal ingot pulling industry, guide tubes are mounted on the water-cooling screen mounting plate via hinges. Specifically, during the production process, the water-cooling screen descends, driving the guide tubes. After the guide tubes are lowered and placed on the hot plate, the water-cooling screen continues to descend to the designated process position. After the melt is added and the process is repeated, the guide tubes can be affected by the hot plate positioning or other factors, resulting in problems such as tilted mounting and misalignment relative to the water-cooling screen. This can impair the guide tube's function and affect the quality of the ingot growth. Utility Model Content

[0003] In order to solve the problem that when the guide tube is reset and connected to the water-cooling screen after movement, the relative positioning of the guide tube and the water-cooling screen is not centered due to the hinge method adopted, thereby affecting the growth quality of the crystal rod, the utility model provides a detachable reset structure for the guide tube of a single crystal furnace, which changes the traditional hinge structure and can solve the problem that the guide tube is tilted due to the easy shaking of the hinge after the guide tube descends with the water-cooling screen, and the problem that the guide tube is difficult to maintain the coaxial center with the water-cooling screen when resetting after multiple detachments.

[0004] The technical solution adopted in this utility model is:

[0005] Provided is a detachable and resetting structure for a single crystal furnace guide tube, comprising:

[0006] Water-cooling screen, the top of the water-cooling screen is respectively connected to the water inlet pipe and the water outlet pipe; the guide tube body, the guide tube body is sleeved on the outside of the water-cooling screen, and the top of the guide tube body has a screw hole, and the guide tube body is threadedly connected with a mounting bolt through the screw hole, and one end of the mounting bolt extends to the outer top of the guide tube body; the hanging plate, the hanging plates are respectively arranged on the water inlet pipe and the water outlet pipe, and each hanging plate is provided with a card slot; the hanging rod, one end of the hanging rod is provided with a threaded groove that cooperates with the mounting bolt, and the other end is threadedly connected with a nut; wherein, the hanging rod is provided with an end of the nut passing through the card slot of the hanging plate, and the nut is used to hang the hanging rod on the top of the hanging plate.

[0007] Optionally, the slots on the mounting plate are arranged in a centrally symmetrical manner with respect to the central axis of the guide tube.

[0008] Optionally, a fixing sleeve is detachably connected to the top of the hanging plate, and a fixing hole for the hanging rod to pass through is opened inside the fixing sleeve along its own central axis direction, and the fixing hole of the fixing sleeve is located directly above the card slot.

[0009] Optionally, the inner wall of the fixing sleeve located in the fixing hole is an inclined surface, and the matching surface between the nut and the fixing hole is an inclined surface.

[0010] Optionally, a blocking bar is provided on the top of the mounting plate.

[0011] Optionally, the slot is an arc-shaped slot.

[0012] Optionally, outer walls of the nut and the hanging rod respectively have cutting surfaces.

[0013] Optionally, the hanging rod is further provided with a tool withdrawal groove communicating with the thread groove.

[0014] Optionally, the mounting plate, the hanging rod, the nut, the fixing sleeve, the retaining bar and the mounting bolt are all made of high temperature resistant materials.

[0015] The beneficial effects of the utility model are:

[0016] By threading the mounting bolt into the screw hole at the top of the guide tube body, a part of the mounting bolt will extend beyond the top of the guide tube body, and the part that extends beyond the mounting bolt will be threadedly connected to the hanging rod through the threaded groove on the hanging rod, while the other end of the hanging rod will first pass through the slot provided on the hanging plate, and then enter the slot on the hanging plate. At this time, by rotating the nut, the nut will be threadedly connected to the hanging rod, so that the hanging rod is locked on the hanging plate by the nut, thereby achieving the connection and fixation of the guide tube body to the water-cooling screen. Compared with the hinge structure, it can prevent the guide tube body from shaking when moving with the water-cooling screen, thereby affecting the growth quality of the crystal rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a front view of a detachable and resetting structure for a guide tube of a single crystal furnace;

[0019] Figure 2 This is an axonometric diagram of a detachable and resetting structure for a single crystal furnace guide tube;

[0020] Figure 3 This is a front view of a hanging rod in a detachable and resetting structure for a guide tube of a single crystal furnace;

[0021] Figure 4 for Figure 3 Schematic diagram of the structure;

[0022] Figure 5 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0023] Reference numerals:

[0024] 1-water cooling screen, 10-water inlet pipe, 11-water outlet pipe, 12-mounting plate, 120-blocking bar, 13-slot, 14-fixing sleeve, 15-hanging rod, 16-thread groove, 17-fixing hole, 18-nut, 19-knife back groove, 2-guide tube body, 20-screw hole, 21-mounting bolt. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0027] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0028] Example

[0029] like Figure 1-4 As shown, this embodiment discloses a detachable and resetting structure for a guide tube of a single crystal furnace, comprising:

[0030] The water cooling panel 1 has a water inlet pipe 10 and a water outlet pipe connected to the top of the water cooling panel 1;

[0031] The guide tube body 2 is sleeved on the outside of the water-cooling panel 1. The top of the guide tube body 2 has a screw hole 20. The guide tube body 2 is threadedly connected to a mounting bolt 21 through the screw hole 20. One end of the mounting bolt 21 extends to the outer top of the guide tube body 2.

[0032] The mounting plates 12 are respectively arranged on the water inlet pipe 10 and the water outlet pipe, and each mounting plate 12 is provided with a slot 13;

[0033] A hanging rod 15, one end of which is provided with a threaded groove 16 for cooperating with the mounting bolt 21, and the other end of which is threadedly connected with a nut 18;

[0034] One end of the hanging rod 15 provided with a nut 18 passes through the slot 13 of the hanging plate 12 , and the nut 18 is used to hang the hanging rod 15 on the top of the hanging plate 12 .

[0035] During use, by threading the mounting bolt 21 into the screw hole 20 at the top of the guide tube body 2, a part of the mounting bolt 21 will extend beyond the top of the guide tube body 2, and the portion of the mounting bolt 21 that extends beyond the top of the guide tube body 2 will be threadedly connected to the hanging rod 15 through the threaded groove 16 on the hanging rod 15, and the other end of the hanging rod 15 will first pass through the slot 13 opened on the hanging plate 12, and then enter the slot 13 on the hanging plate 12. At this time, by rotating the nut 18, the nut 18 will be threadedly connected to the hanging rod 15, so that the hanging rod 15 is locked to the hanging plate 12 by the nut 18, thereby achieving the connection and fixation of the guide tube body 2 to the water-cooled screen 1. Compared with the hinge structure, it can prevent the guide tube body 2 from shaking when moving with the water-cooled screen 1 and affecting the growth quality of the crystal rod.

[0036] In one embodiment, Figure 2 As shown, the slots 13 on the mounting plate 12 are centrally symmetrically arranged with respect to the central axis of the guide tube.

[0037] When in use, there are at least two hanging plates 12, which are respectively located on the water inlet pipe 10 and the water outlet pipe. A slot 13 is provided on each hanging plate 12, and the angle between the slot 13 provided by the hanging plate 12 on the water inlet pipe 10 and the slot 13 provided by the hanging plate 12 on the water outlet pipe is 180°. The two are centrally symmetrically arranged with respect to the central axis of the guide tube body 2. Since the guide tube body 2 was originally hung on the water-cooled screen 1, after the hanging rod 15 was stuck in the slot 13, the guide tube body 2 was rotated by the tool cart to prompt the original hanging rod 15 to be stuck in the slot 13 of the hanging plate 12 on the water-cooled screen 1 and then withdrawn from the tool cart, which was relatively troublesome. Now, a front-and-back, that is, centrally symmetrical, slot 13 arrangement is adopted to facilitate operation.

[0038] In one embodiment, a fixing sleeve 14 is detachably connected to the top of the hanging plate 12 , and a fixing hole 17 for the hanging rod 15 to pass through is opened inside the fixing sleeve 14 along its own central axis. The fixing hole 17 of the fixing sleeve 14 is located directly above the card slot 13 .

[0039] During use, the fixing sleeve 14 is attached to the water inlet pipe 10 of the water-cooling panel 1 via a detachable connection, specifically a bolted connection, to facilitate assembly and disassembly of the fixing sleeve 14. The fixing sleeve 14 has a fixing hole 17 defined within it. This hole 17 corresponds to the slot 13 defined in the mounting plate 12, allowing the hanging rod 15 to pass through the slot 13 in the mounting plate 12 and the fixing hole 17 in the fixing sleeve 14. The fixing sleeve 14 prevents the hanging rod 15 from falling out of the slot 13 defined in the mounting plate 12.

[0040] In one embodiment, Figure 4 As shown, the inner wall of the fixing sleeve 14 located in the fixing hole 17 is an inclined surface, and the matching surface between the nut 18 and the fixing hole 17 is an inclined surface.

[0041] When in use, the fixing sleeve 14 is fixed to the top of the guide tube body 2 by a threaded connection, the hanging rod 15 passes through the fixing hole 17 on the fixing sleeve 14, and after the nut 18 is threadedly connected to the top of the hanging rod 15, the guide tube body 2 is hung on the hanging plate 12. After the melting and multiple re-investment process steps, the inclined surface between the nut 18 on the hanging rod 15 and the fixing sleeve 14 can adjust the guide tube body 2 whose position has been offset to a position where the central axis of the hanging rod 15 is consistent with the central axis of the fixing hole 17, and the guide tube body 2 can always be kept in a coaxial position with the water-cooling screen 1. Compared with the hinge connection between the guide tube body 2 and the water-cooling screen 1, the assembly method of the hanging plate 12, the fixing sleeve 14, the hanging rod 15 and the nut 18 is more stable, and can correct the guide tube body 2 that has been offset in position, so that the guide tube body 2 and the water-cooling screen 1 are always in a coaxial position.

[0042] In one embodiment, a blocking bar 120 is provided on the top of the hanging plate 12 .

[0043] When in use, a blocking bar 120 is provided at the top edge of the hanging plate 12. When the fixing sleeve 14 is not fixed to the hanging plate 12 by bolt connection, the fixing sleeve 14 will move on the hanging plate 12. When the hanging rod 15 passes through the slot 13 on the hanging plate 12 and enters the fixing hole 17 on the corresponding fixing sleeve 14, the nut 18 is threadedly connected to the top of the hanging rod 15, and the guide tube body 2 is also hung on the hanging plate 12. Afterwards, after the melting material and multiple re-investment process steps, the guide tube body 2 is connected to the corresponding Compared with the water-cooled screen 1, there will be a positional offset, which may cause the hanging rod 15 to slide out of the slot 13. At this time, a disconnection occurs between the guide tube body 2 and the water-cooled screen 1. In this regard, a baffle 120 is provided on the hanging plate 12. When the hanging rod 15 slides in the slot 13 and tends to slide out of the slot 13, the baffle 120 can prevent the fixing sleeve 14 from continuing to move, indirectly preventing the hanging rod 15 from sliding out of the slot 13, thereby preventing the guide tube body 2 from being disconnected from the water-cooled screen 1.

[0044] In one embodiment, Figure 1 As shown, the slot 13 is an arc-shaped slot.

[0045] When in use, the slot 13 is adjusted to an arc-shaped slot to avoid affecting the centering and resetting between the guide tube body 2 and the water-cooling screen 1. Specifically, the inner wall surface of the slot 13 is an arc surface, and the concave surface of the arc-shaped slot is facing the central axis of the water-cooling screen 1. When the guide tube body 2 needs to be removed from the water-cooling screen 1, the hanging rod 15 on the guide tube body 2 needs to be rotated to allow the hanging rod 15 to enter and exit the slot 13. If the slot 13 is a straight slot, and after the hanging rod 15 enters the slot 13, the gap between the hanging rod 15 and the inner wall of the slot 13 is small, it is difficult for the guide tube body 2 to smoothly enter the slot 13 through the hanging rod 15. In this regard, the only way is to widen the slot width of the slot 13 or select the slot 13 to be suitable for the entry of the hanging rod 15 that rotates in the circumferential direction.

[0046] In one embodiment, Figure 3 As shown, the outer walls of the nut 18 and the hanging rod 15 respectively have cutting surfaces.

[0047] When in use, the outer wall of the nut 18 and the outer wall of the hanging rod 15 both have cutting surfaces. Specifically, the cutting surface is a plane processed by the milling flattening method in the cutting process. The cutting surface causes a fault to appear on the outer wall of the nut 18 and the hanging rod 15, and it is convenient to adjust the position and rotation of the nut 18 and the hanging rod 15 through the cutting surface.

[0048] In one embodiment, Figure 4 As shown, the hanging rod 15 is further provided with a tool-retracting groove 19 communicating with the thread groove 16 .

[0049] During use, the hanging rod 15 is provided with a tool relief groove 19, located at the bottom of the thread groove 16. This groove is primarily intended to facilitate machining and prevent collisions between the tool or grinding wheel and the stepped, chamfered, or rounded corners being worked on, thereby protecting the tool and ensuring smooth machining. Furthermore, the tool relief groove 19 helps ensure a tight fit between adjacent parts during assembly. Furthermore, the design of the tool relief groove 19 facilitates pushing the tool slightly beyond the machining surface, further improving machining efficiency.

[0050] In one embodiment, the mounting plate 12 , the hanging rod 15 , the nut 18 , the fixing sleeve 14 , the blocking bar 120 and the mounting bolt 21 are all made of high temperature resistant materials.

[0051] During use, since the guide tube and water cooling screen are used in the single crystal furnace, and the internal temperature of the single crystal furnace is relatively high during use, in order not to affect the normal use of the present invention, it is necessary to select the connecting plate 12, hanging rod 15, nut 18, fixing sleeve 14, baffle 120 and mounting bolt 21 from high temperature resistant materials.

[0052] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. The embodiments and features of the embodiments of this application may be combined arbitrarily without conflict. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A detachable and resetting structure for a guide tube of a single crystal furnace, characterized in that: include: A water-cooling screen, the top of which is respectively connected to a water inlet pipe and a water outlet pipe; a guide tube body, which is sleeved on the outside of the water-cooling screen, and the top of the guide tube body is provided with a screw hole, and the top of the guide tube body is provided with a mounting bolt located in the screw hole, and the mounting bolt is threadedly connected to the guide tube body through the screw hole, and one end of the mounting bolt extends to the outer top of the guide tube body; a hanging plate, which is provided on the outer wall of the water inlet pipe and the outer wall of the water outlet pipe, and a card slot is provided on the side wall surface of each of the hanging plates; a hanging rod, one end of which is provided with a threaded groove matching the mounting bolt, and the other end is threadedly connected with a nut; wherein, the hanging rod is provided with an end of a nut passing through the card slot of the hanging plate, and the nut is used to hang the hanging rod on the top of the hanging plate.

2. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 1 is characterized in that: The connecting plate on the water inlet pipe and the connecting plate on the water outlet pipe are centrally symmetrically arranged, and the axis of symmetry is the central axis of the guide tube.

3. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 1 is characterized in that: The top of the hanging plate is detachably connected with a fixing sleeve, and a fixing hole for the hanging rod to pass through is opened inside the fixing sleeve along its own central axis direction, and the fixing hole of the fixing sleeve is located directly above the card slot.

4. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 3 is characterized in that: The inner wall of the fixing sleeve is an inclined surface, and the matching surfaces of the nut and the fixing hole are also inclined surfaces.

5. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 3, characterized in that: A blocking bar is provided on the top of the hanging plate.

6. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 1, characterized in that: The clamping slot is an arc-shaped slot.

7. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 1, characterized in that: The outer walls of the nut and the hanging rod are respectively provided with cutting surfaces.

8. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 1, characterized in that: The hanging rod is also provided with a tool withdrawal groove which is communicated with the thread groove.

9. The detachable and resetting structure for the guide tube of a single crystal furnace according to claim 5, characterized in that: The connecting plate, the hanging rod, the nut, the fixing sleeve, the blocking bar and the mounting bolt are all made of high temperature resistant materials.

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